Don Coppersmith, Uriel Feige, et al.
SIAM Journal on Discrete Mathematics
A new algorithm for computing Hadamard transforms is presented. If n is a power of four, then the new algorithm uses ⅞ n logn multiply/adds to compute a Hadamard transform of length n. © 1994 IEEE
Don Coppersmith, Uriel Feige, et al.
SIAM Journal on Discrete Mathematics
Ephraim Feig
IEEE Transactions on Communications
Ephraim Feig, Elliot Linzer
IS&T/SPIE Electronic Imaging 1991
C.K. Wong, Don Coppersmith
Journal of the ACM